The minimum age of the charcoal is estimated to be approximately 57,000 years old,
Based on the information provided, the charcoal from the old camp fire contains less than 1/1000 the normal amount of carbon 14. Carbon 14 has a half-life of approximately 5730 years. Using the formula for exponential decay, we can estimate the minimum age of the charcoal.
If we assume that the original amount of carbon 14 in the charcoal was 1000 times greater than the amount found during the archeological dig, we can use the following equation:
N = N0 x (1/2)^(t/t1/2)
Where:
N = the amount of carbon 14 found during the dig
N0 = the original amount of carbon 14 in the charcoal
t = the time that has passed since the charcoal was last alive
t1/2 = the half-life of carbon 14
If we plug in the values we know, we get:
N = 1/1000 x N0
t1/2 = 5730 years
1/1000 N0 = N0 x (1/2)^(t/5730)
We can simplify this equation by dividing both sides by N0 and taking the natural log of both sides:
ln(1/1000) = (t/5730) x ln(1/2)
-6.9078 = -0.6931 x (t/5730)
Solving for t, we get:
t = (-6.9078) x (5730/-0.6931)
t ≈ 57,000 years
Therefore, the minimum age of the charcoal is estimated to be approximately 57,000 years old, assuming the original amount of carbon 14 was 1000 times greater than the amount found during the archeological dig. Additionally, we note that 2^10 = 1024 was not needed to solve this problem.
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1 application of gravity on earth.
A slope of length 50 m rises to a height of 10 m above the ground. An effort of 100 N is needed to push a 250 N object up the ramp. Calculate: 1. AMA 2. VR 3. efficiency
1.) The AMA is 2.5
2.) The VR is 5.
3.) The efficiency is 50%.
Given that the object has a weight of 250 N and the effort needed to push it up the ramp is 100 N, we can calculate the AMA as follows:
AMA = Load / Effort
AMA = 250 N / 100 N
AMA = 2.5
Therefore, the AMA is 2.5.
To calculate the VR, we need to find the distance moved by the effort and the distance moved by the load. The distance moved by the effort is the length of the ramp, which is 50 m. The distance moved by the load is the height it is raised, which is 10 m. Therefore, we have:
VR = Distance moved by effort / Distance moved by load
VR = 50 m / 10 m
VR = 5
Therefore, the VR is 5.
To calculate the efficiency, we need to find the work done by the load and the work done by the effort. The work done by the load is:
Work done by load = Load x Distance moved by load
Work done by load = 250 N x 10 m
Work done by load = 2,500 J
The work done by the effort is:
Work done by effort = Effort x Distance moved by effort
Work done by effort = 100 N x 50 m
Work done by effort = 5,000 J
Therefore, the efficiency is:
Efficiency = (Load x Distance moved by load) / (Effort x Distance moved by effort)
Efficiency = (2,500 J) / (5,000 J)
Efficiency = 0.5 or 50%
Therefore, the efficiency is 50%.
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calculate the momentum:
0.5 kg moving at 30 m/s
Answer:
Momentum = 15 kg m/s
Explanation:
Momentum = Mass × Velocity
= 0.5 × 30
= 15 kg m/s
A person driving in a neighborhood traveling 9 m/s slows to a stop (0 m/s) over 4 seconds as they approach a stop sign. What is the rate of acceleration of the car coming to a stop in m/s2?
Answer:
-2.25
Explanation:
v=u+at
0=9+a(4)
9+4a=0
4a=-9
a= -2.25
the rate of acceleration of the car coming to a stop is 2.25 m/s².
What is Speed?speed is described as. the pace at which an object's location changes in any direction. Speed is defined as the distance traveled divided by the travel time. Speed is a scalar quantity because it just has a direction and no magnitude.
given, A person driving in a neighborhood traveling 9 m/s slows to a stop (0 m/s) over 4 seconds as they approach a stop sign.
The acceleration of the car can be calculated using the formula:
acceleration = (final velocity - initial velocity) / time
Here, the initial velocity is 9 m/s (the speed at which the car was traveling before braking),
the final velocity is 0 m/s (the speed at which the car comes to a stop), and the time taken to stop is 4 seconds. Substituting these values into the formula,
we get:
acceleration = (0 m/s - 9 m/s) / 4 s
acceleration = -9 m/s / 4 s
acceleration = -2.25 m/s²
The negative sign indicates that the car is decelerating, or slowing down.
Therefore, the rate of acceleration of the car coming to a stop is 2.25 m/s².
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Before raw data can be used as scientific evidence, it must be analyzed and summarized. one way of summarizing data is to find the mean, or average, of a set of data points. what method is used for calculating the mean? adding the values of all the data points and dividing by the number of data points dividing the value of each data point by the total value of all the data points multiplying the values of the highest and lowest data point, and then dividing by two subtracting the highest value among the data points from the lowest value
Adding the values of all the data points and dividing by the number of data points dividing the value of each data point by the total value of all the data points multiplying the values of the highest and lowest data point, and then dividing by two subtracting the highest value among the data points from the lowest value.
A scientific model is a bodily and/or mathematical and/or conceptual representation of a system of ideas, occasions, or procedures. Scientists are seeking to perceive and recognize patterns in our world by drawing on their scientific understanding to offer motives that enable the styles to be anticipated.
Benefits of modeling and simulation :
* Can be more secure and less expensive than the real international.
* Able to test a product or device that works earlier than building it.
* Can use it to discover unexpected troubles.
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A vertical piston-cylinder device initially contains 0.1 m^3 of air at 400 K and 100 kPa. At this initial condition, the piston is resting on a stop. The piston-cylinder device is connected to a supply line with air at 400 K and a pressure of 500 kPa. The valve between the supply line and the piston-cylinder device is opened and is left open until the pressure in the piston-cylinder device reaches 500 kPa. The piston is observed to start moving when the pressure in the cylinder is 200 kPa and the piston continues to rise until it reaches a second stop. At the second stop, the piston-cylinder volume is 0.2 m^3 . The final temperature and pressure in the piston-cylinder device are 440 K and 500 kPa, respectively. Determine the heat transfer to or from the piston-cylinder device for the filling process Determine heat transfer (kJ) during the entire process.
Answer:
\(Q=-38.15kJ\)
Explanation:
From the question we are told that
Piston-cylinder initial Volume of air \(v_1=0.1 m^3\)
Piston-cylinder initial temperature \(T_1=400k\)
Piston-cylinder initial pressure \(P_1= 100kpa\)
Supply line temperature\(T_s=400k\)
Supply line pressure \(P_s= 500kpa\)
Valve final pressure \(P_v=500kpa\)
Piston movement pressure \(P_m=200kpa\)
Piston-cylinder final Volume of air\(v_2=0.2 m^3\)
Piston-cylinder final temperature \(T_2=440k\)
Piston-cylinder final pressure \(P_2= 500kpa\)
Generally the equation for conservation of mass is mathematically given by
\(Q=m_2 \mu_2-m_1 \mu_1 +W-(m_2-m_1)h\)
where
Initial moment
\(m_1=\frac{p_1 V_1}{RT_1}\)
\(m_1=\frac{100*0.1}{0.287*400}\)
\(m_1=8.7*10^-^2kg\)
Final moment
\(m_2=\frac{p_2 V_2}{RT_2}\)
\(m_1=\frac{500*0.3}{0.287*440}\)
\(m_1=79*10^{-2}kg\)
Work done by Piston movement pressure
\(W=Pd\)
\(W=P(v_2-v_1)\)
\(W=200(0.2-0.1))\)
\(W=20000J\)
Heat function
\(h=cT_1\)
\(h=1.005(400)\)
\(h=402\)
Therefore
\(Q=(0.792*0.718(440)-0.0871*0.718(400)+20-(0.792-0.087)*402))\)
\(Q=-38.15kJ\)
It is given mathematically that the system lost or dissipated Heat of
\(Q=-38.15kJ\)
an airplane flies between two points on the ground that are 500 km apart. the destination is directly north of the origination of the flight. the plane flies with an air speed of . if a constant wind blows at 10.0 m/s due west during the flight, what direction must the plane fly relative to north to arrive at the destination?
The answer is 86.4 degrees north of east. To arrive at the destination, the plane must fly in a direction that is a combination of its air speed and the wind direction.
Let's call the direction the plane must fly "x" degrees north of east. The plane's ground speed is the vector sum of its air speed and the wind speed. Since the wind is blowing due west and the plane is flying directly north, the wind will have no effect on the plane's northward speed. However, the wind will reduce the plane's eastward speed.
Using trigonometry, we can find that the plane's ground speed is approximately 424.3 km/hr. Since the plane needs to travel 500 km, it will take approximately 1.178 hours to reach its destination.
During that time, the wind will have pushed the plane 11.78 km to the west. We can use trigonometry again to find that the angle whose tangent is 11.78/500 is approximately 1.34 degrees.
Therefore, the plane must fly in a direction that is 90 degrees minus 1.34 degrees, or 88.66 degrees, north of east. Rounding to one decimal place, the answer is 86.4 degrees north of east.
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What is everything in our physical environment made of? *
A matter
B solids
C gases
Answer: matter
Explanation:
Percent Yield Lab Report
Instructions: For this investigative phenomenon, you will need to determine the percent yield of magnesium oxide from the given reaction to determine if it is a useful commercial process. Record your data and calculations in the lab report below. You will submit your completed report.
Title:
Objective(s):
Hypothesis:
No hypothesis needed for this lab. Your theoretical yield calculation serves as your prediction for what you expect the lab to produce, and that will be determined later in the lab.
Procedure:
Access the virtual lab. Because this lab is virtual, summarize the steps used to collect your data. In addition, list and explain your controlled variables, independent variable, and dependent variable for this lab.
Materials:
Percent Yield Virtual Lab
Variables:
Remember, controlled variables are factors that remain the same throughout the experiment. An independent (test) variable changes so that the experimenter can see the effect on other variables. The dependent (outcome) variable will change in response to the test variable.
Controlled variables:
Independent Variable:
Dependent Variable:
Summary of Steps:
Data:
Type the data in the data table below. Don’t forget to record measurements with the correct number of significant figures. Hint: Using the same instrument, you should have the same number of digits to the right of the decimal.
Data
Trial 1
Trial 2
Mass of empty crucible with lid
26.698(g) 26.691(g)
Mass of Mg metal, crucible, and lid
27.040(g) 27.099(g)
Mass of MgO, crucible, and lid
27.198(g) 27.361(g)
Calculations:
Show your calculations for each of the following. Remember, calculations should follow rules for significant figures.
Write the balanced chemical equation for the reaction you are performing.
Subtract the mass of the crucible and lid (row 1 in the chart) from the total mass of Mg, crucible, and lid (row 2 in the chart) to find the mass of magnesium for each trial.
Trial 1:
Trial 2:
Subtract the mass of the crucible and lid (row 1 in the chart) from the total mass of MgO, crucible, and lid (row 3 in the chart) to find the mass of magnesium oxide for each trial. This is the actual yield of magnesium oxide for each trial.
Trial 1:
Trial 2:
Magnesium is the limiting reactant in this experiment. Calculate the theoretical yield of MgO for each trial.
Trial 1:
Trial 2:
Determine the percent yield of MgO for your experiment for each trial.
Trial 1:
Trial 2:
Determine the average percent yield of MgO for the two trials.
Conclusion:
Write a conclusion statement that addresses the following questions:
Explain why the product had a higher mass than the reactant, and how this relates to conservation of matter.
What sources of error may have contributed to the percent yield not being 100 percent? (Think about things that may have led to inaccurate measurements or where mass of the product could have been lost if this experiment was conducted in a physical laboratory.)
How do you think the investigation can be explored further?
Post-Lab Reflection Questions
Answer the reflection questions using what you have learned from the lesson and your experimental data. It will be helpful to refer to your chemistry journal notes. Answer questions in complete sentences.
When conducting this experiment, some procedures call for heating the substance several times and recording the mass after each heating, continuing until the mass values are constant. Explain the purpose of this process and how it might reduce errors.
Your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. If the average percent yield of this process is higher than that, this could save the company money. What is your recommendation to the company? Please support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.
Based on the data obtained from the reaction, the following conclusions can be made;
according to the law of conservation of mass, the mass of the product was higher than the reactant because of the mass of oxygen added during the combustion.the percent yield is less than 100% because of loss in mass of either reactants or products.the errors could have occurred during the weighing and transfer of reactants and productsrepeated measurements are required in order to improve accuracyWhat is the percent yield of the reaction?Equation of the reaction is given below:
2 Mg + O₂ ----> 2 MgOTrial 1
Mass of empty crucible with lid = 26.698 (g)
Mass of Mg metal, crucible, and lid = 27.040 (g)
Mass of MgO, crucible, and lid = 27.198 (g)
Mass of metal = 27.040 - 26.698 = 0.342
Mass of MgO = 27.198 - 26.698 = 0.500
Moles of Mg usedmoles of Mg = mass/molar mass
molar mass of Mg = 24 gmoles of Mg = 0.342/24 = 0.01425
Moles of MgO expectedBased on the equation of reaction;
moles of MgO expected = 0.01425
moles of MgO produced = mass/molar mass
molar mass of MgO = 40 g/molmoles of MgO produced = 0.500/40 = 0.0125
Percent yieldPercent yield = (moles of MgO produced/moles of MgO expected) * 100%Percentage yield = 0.0125/0.01425 * 100%
Percent yield of MgO = 87.7%
Trial 2
Mass of empty crucible with lid = 26.691 (g)
Mass of Mg metal, crucible, and lid = 27.099 (g)
Mass of MgO, crucible, and lid = 27.361 (g)
Mass of metal = 27.099 - 26.691 = 0.408
Mass of MgO = 27.361 - 26.691 = 0.670
Moles of Mg usedmoles of Mg = mass/molar mass
molar mass of Mg = 24 gmoles of Mg = 0.408/24 = 0.0170
Moles of MgO expectedBased on the equation of reaction;
moles of MgO expected = 0.0170
moles of MgO produced = mass/molar massmolar mass of MgO = 40 g/mol
moles of MgO produced = 0.670/40 = 0.01675
Percent yieldPercent yield = (moles of MgO produced/moles of MgO expected) * 100%Percent yield = 0.01675/0.0170 * 100%
Percent yield of MgO = 98.5%
Average percent yield = (87.7 + 98.5)% / 2
Average percent yield = 89.0%
Based on the data obtained from the reaction, the following conclusion can be made;
according to the law of conservation of mass, the mass of the product was higher than the reactant because of the mass of oxygen added during the combustion.the percent yield is less than 100% because of loss in mass of either reactants or products.the errors could have occurred during the weighing and transfer of reactants and productsrepeated measurements are required in order to improve accuracyLearn more about law of conservation of mass at: https://brainly.com/question/1824546
Answer:
90.3
Explanation:
Edge 2022
3. What is the horizontal component of a baseball moving at 50 m/s at 20°above the
horizontal. Do not include the unit.
Type a response
The horizontal component of a baseball moving at 50 m/s at 20°above the horizontal. The horizontal component of a baseball is (v)= 46.98
What is velocity?Velocity is a physical phenomena that means a object has changed its position from one point to another in a given time. It can be measured in m/s, cm/s.
How can we calculate the velocity?To calculate the horizontal component of a moving baseball we are using the formula, v= Vcosθ
Here we are given,
V= The velocity of the baseball. = 50 m/s.
θ= The angle that the ball makes above the horizontal.= 20°.
we have to calculate the values of horizontal component of a moving baseball = v
Now we put the values in above equation, we get
v= Vcosθ
Or, v= 50*cos(20)
Or, v= 46.98
So we can say that, The horizontal component of a baseball is (v)= 46.98
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Wood frogs have camouflaged skin so they blend into the background very well.
They also have a layer of mucous on their skin so they can slip away from
predators. What type(s) of adaptations are these?
Answer:
Anti-predator adaptation.
Explanation:
Their habitat is the forest and woodland. Their way of life fits into the anti-predator adaptation but I'm not 100% sure that I'm correct.
when the top of the electrode leads the welding end of the electrode, and the welding arc is pointing back toward the weld bead, the travel angle is called a(n) ____ angle.
According to the information we can infer that the travel angle is called a "drag" angle.
How is it call a travel angle?In welding terminology, the travel angle refers to the angle between the axis of the electrode and the workpiece surface. When the top of the electrode leads the welding end (meaning the electrode is inclined downward at an angle) and the welding arc is pointing back toward the weld bead, it is known as a "drag" angle.
In this configuration, the electrode is dragged along the surface of the workpiece, creating a trailing arc direction. This technique is commonly used in certain welding processes, such as shielded metal arc welding (SMAW) or stick welding, to control the heat input and the direction of the molten metal flow during the welding operation.
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Um, I need help finding objects- Name some for me, please :(
Answer:
table, book, water bottle, bed, vase, statue, etc.
Answer:
Every thing around you right now? is an object, your computer is an object also
Explanation:
what is the value of the fermi-dirac distribution for energies less than the fermi energy, if the temperature is t=0k ? express your answer to two significant figures.
The value of the Fermi-Dirac distribution for energies less than the Fermi energy at absolute zero temperature (T=0K) is 1.00.
The Fermi-Dirac distribution function describes the probability of finding an electron in a specific energy state in a Fermi gas. It is given by the equation:
f(E) = 1 / (1 + exp((E - EF) / (kT)))
Where f(E) is the Fermi-Dirac distribution function, E is the energy, EF is the Fermi energy, k is Boltzmann's constant, and T is the temperature.
At absolute zero temperature (T=0K), the exponential term in the equation becomes infinite for energies less than EF, and the distribution function simplifies to:
f(E) = 1 / (1 + ∞) = 1 / ∞ = 0
Therefore, for energies less than the Fermi energy at absolute zero temperature, the value of the Fermi-Dirac distribution function is 0. However, it's important to note that this result assumes ideal conditions and a non-degenerate Fermi gas.
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Describe an organism that might live in an extreme environment such as inside a volcano, deep in the ocean, or in an icy cave.
Answer:
If you haven’t read about the shark found swimming in and out of a segment of an undersea volcano, then you really need to get up to date.
Explanation:
A chicken runs across the street at a speed of 12 m/s. If the road is 36 meters across, how long does it take for the chicken to cross the road?
Answer:
3
Explanation:
Its not that hard....
If a chicken runs across the street at a speed of 12 m/s, and the road is 36 meters across, then the chicken takes 3 seconds to cross the road.
What is speed?Speed is the rate at which an object covers distance. It is the measure of how fast or slow an object is moving relative to a particular reference point.
Speed is usually expressed in units of distance per unit time, such as meters per second (m/s), kilometers per hour (km/h), or miles per hour (mph).
For example, if a car travels a distance of 100 kilometers in 2 hours, then its speed would be:
Speed = Distance / Time = 100 km / 2 hours = 50 km/h
This means that the car is covering a distance of 50 kilometers every hour.
Here in the Question,
To calculate the time it takes for the chicken to cross the road, we can use the formula:
time = distance/speed
where distance is the width of the road, and speed is the velocity of the chicken.
Substituting the given values, we get:
time = 36 meters / 12 m/s
time = 3 seconds
Therefore, it takes the chicken 3 seconds to cross the road.
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I NEED ANSWER ASAP WILL MARK BRAINLY Which term is defined as the change in the direction of light when it goes from one medium into a different medium?
transmission
reflection
absorbtion
refraction
Answer:
reflection
Explanation:
Answer:
Refraction
I think
dim your high-beam headlights to low-beams within ______ feet when a vehicle is coming towards you.
When a vehicle is approaching you, it is important to dim your high-beam headlights to low beams within a distance of approximately 500 feet.
This distance provides enough time for the oncoming driver to adjust their vision and safely navigate the road. By dimming your high beams, you reduce the risk of blinding the other driver and causing potential accidents or discomfort. Maintaining proper headlight etiquette promotes safety and ensures a clear line of sight for all drivers on the road, allowing for a smoother and more secure driving experience during nighttime or low visibility conditions.
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What is the main function of the mitochondria in a cell?
Answer:
Below :)
Explanation:
It is the powerhouse of the cell and creates chemical energy.
if you operate a 2.0 kilowatt for 2 hours how much energy do you use
Answer:
4 kWh/day
Explanation:
hope this helps!
~mina-san
a vertical spring of spring constant 115 n/m supports a mass of 75 g. the mass oscillates in a tube of liquid. if the mass is initially given an amplitude of 5.0 cm, the mass is observed to have an amplitude of 2.0 cm after 3.5 s. by neglecting the buoyant force, estimate the damping constant b.
By neglecting the buoyant force and using the given information, we estimate the damping constant (b) for this mass-spring system to be approximately 0.066 kg/s.
To estimate the damping constant (b) for a mass-spring system, we can use the following steps:
1. Calculate the angular frequency (ω) of the system using the spring constant (k) and mass (m):
ω = sqrt(k/m)
2. Determine the decay constant (α) using the initial amplitude (A0) and final amplitude (A) after time (t):
α = (1/t) * ln(A0/A)
3. Calculate the damping constant (b) using the angular frequency (ω) and decay constant (α):
b = 2 * m * α
Let's apply these steps to your problem:
1. Convert mass to kg: m = 75 g = 0.075 kg
ω = sqrt(115 N/m / 0.075 kg) ≈ 39.1 rad/s
2. Calculate decay constant (α):
α = (1/3.5 s) * ln(5.0 cm / 2.0 cm) ≈ 0.44 s^(-1)
3. Estimate the damping constant (b):
b = 2 * 0.075 kg * 0.44 s^(-1) ≈ 0.066 kg/s
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A wood burning stove is used to heat the air in a small cabin. What types of heat transfer are involved?.
A wood burning stove is used to heat the air in a small cabin. Conduction and radiation heat transfer are involved.
Conduction heat transfer is the switch of warmth with the aid of molecular excitement within a material without bulk motion of the problem. Conduction warmth transfer in gases and liquids is due to the collisions and diffusion of the molecules at some point of their random movement.
A common instance of conduction is the technique of heating a pan on a range. the heat from the burner transfers at once to the surface of the pan. Temperature is a degree of the quantity of kinetic energy processed with the aid of the debris in a sample of count.
Conduction is the transfer of energy from one molecule to another by direct contact. This transfer occurs when molecules hit against every different, just like a game of pool where one shifting ball strikes some other, causing the second to transport.
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7. Una locomotora de 80.000 kilogramos de masa, parte del reposo y a los 10 segundos lleva una velocidad de 36Km/h. Halla: A. La aceleración del movimiento. B. La fuerza que causa el movimiento.
Answer:
a) La aceleración del movimiento es 1 metros por segundo al cuadrado, b) La fuerza que causa el movimiento es 80.000 newtons.
Explanation:
a) Supóngase que la locomotora acelera uniformemente, la aceleración se está descrita por la siguiente ecuación cinemática:
\(v = v_{o}+a\cdot t\)
Donde:
\(v_{o}\) - Rapidez inicial, medida en metros por segundo.
\(v\) - Rapidez final, medida en metros por segundo.
\(a\) - Aceleración, medida en metros por segundo al cuadrado.
\(t\) - Tiempo, medido en segundos.
Se despeja la aceleración:
\(a = \frac{v-v_{o}}{t}\)
Si \(v_{o} = 0\,\frac{m}{s}\), \(v = 10\,\frac{m}{s}\) y \(t = 10\,s\), la aceleración del movimiento es:
\(a = \frac{10\,\frac{m}{s}-0\,\frac{m}{s}}{10\,s}\)
\(a = 1\,\frac{m}{s^{2}}\)
La aceleración del movimiento es 1 metros por segundo al cuadrado.
b) Dado que una locomotora es un sistema de masa constante, la fuerza (\(F\)) que genera el movimiento es igual a:
\(F = m\cdot a\)
Donde:
\(m\) - Masa, medida en kilogramos.
\(a\) - Aceleración, medida en metros por segundo al cuadrado.
Dados que \(m = 80.000\,kg\) y \(a = 1\,\frac{m}{s^{2}}\), la fuerza que causa el movimiento es:
\(F = (80.000\,kg)\cdot \left(1\,\frac{m}{s^{2}} \right)\)
\(F = 80.000\,N\)
La fuerza que causa el movimiento es 80.000 newtons.
how does the electric potential energy between two positively charged particles if the distance is increase by a factor of 2
Answer: Potential energy is decreased by a factor of 2.
Explanation:
Potential energy can be defined as the capacity for doing work that arises from position or configuration.
In the electrical case, a charge will exert a force on any other charge and potential energy arises from any collection of charges.
The magnitude of electric potential relies on the amount of work done in moving the object from one point to another against the electric field.
Potential energy between two positive charges is given by
U =(kq1q2)/r
Therefore, U is inversely proportional to the distance between the charges(r).
If r becomes half, then U gets doubled.
Therefore, the potential energy decreases by a factor of 2.
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what are metalloids?
Answer:
a type of chemical element whose properties are intermediate between those of metals and nonmetals.
How did the magma get from the volcanic center to the locations where the laccoliths formed?
Laccolith magma (molten rock) rising through the Earth's crust begins to spread out horizontally, prying aside the host rock strata.
Laccoliths are not unusual in the Pine Valley Mountain desert location close to St. George, Utah. The stress of the magma is high enough that the overlying strata are compelled upward, giving the laccolith its dome-like form.
A laccolith is a frame of intrusive rock with a dome-shaped top surface and a degree base, fed through a conduit from under. A laccolith bureaucracy when magma (molten rock) rising thru the Earth's crust starts to unfold out horizontally, prying aside the host rock strata. The stress of the magma is excessive enough that the overlying strata are pressured upward, giving the laccolith its dome-like form.
A laccolith is a type of igneous intrusion, shaped when magma forces its manner upwards via the Earth's crust however cools and solidifies before attaining the surface. Laccoliths are outstanding from other igneous intrusions by way of their dome-shaped upper floor and level base.
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The dead sea has a very high salt content. Explain why it is easier for a swimmer to float in the dead sea than in a swimming pool containing fresh water
Answer:
Dead sea is full of salt.
Explanation:
The water of the Dead Sea is full of salt, which makes it much denser and heavier than freshwater. If you swim in it, you float very easily.
When salt is dissolved in water, for example sea water, dissolved salt adds to the mass of the water and makes the water denser than it would be without salt. Because objects float better on a dense surface, they float better on salt water than fresh water.
7/21/22, 7:37 AMProblem Set ThreeNotes: Use 9.8 m/s 2 for the acceleration due to gravity. Formust be expressed in m/sLaw calculations, mass must be expressed in kg and velocity.An automobile weighs 2000lb. Calculate the weight of the car in N and it’s mass in kg.
Given:
The mass of the automobile is
\(m=2000\text{ lb}\)To find:
The weight of the car in N and its mass in kg
Explanation:
We know,
\(1\text{ lb=0.454 kg}\)So, the mass of the automobile is
\(\begin{gathered} m=2000\times0.454 \\ =908\text{ kg} \end{gathered}\)After an average acceleration of 3.19 m/s23.19 m/s2 during 2.73 s2.73 s , a car reaches a velocity of 15.5 m/s15.5 m/s . find the car's initial velocity.
To find the car's initial velocity, we can use the equation of motion:
final velocity = initial velocity + (average acceleration × time)
Given that the final velocity is 15.5 m/s, the average acceleration is 3.19 m/s², and the time is 2.73 seconds, we can substitute these values into the equation:
15.5 m/s = initial velocity + (3.19 m/s² × 2.73 s)
To solve for the initial velocity, we need to isolate it on one side of the equation. Let's start by multiplying the average acceleration and the time:
15.5 m/s = initial velocity + 8.7187 m/s
Now, we can subtract 8.7187 m/s from both sides of the equation to isolate the initial velocity:
15.5 m/s - 8.7187 m/s = initial velocity + 8.7187 m/s - 8.7187 m/s
6.7813 m/s = initial velocity
Therefore, the car's initial velocity is 6.7813 m/s.
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Help please (20 pts) I think it's C
What does "think of concrete examples" mean?
A. It means you come up with as many examples as you can in five minutes.
B. It means your thinking is getting too stiff, like concrete.
C. It means you think about how you can imagine the problem as a concrete block.
D. It means think of a real-life example you can relate to that has to do with what you’re learning.
Answer:
I'm not sure it is c I'm sure it is d